Carriage-pole



(No Model.) W. A. GALBRAITH.

CARRIAGE POLE. No. 422,394. Patented-Mar. 4, 1890.

INVENTOR 0% mw flttorney.

WITNESSES N. PETERS. Phumwho n her, Wzslinglou, D. C

UNITED STATES PATENT OFFICE.

WILLIAM A. GALBRAITH, OF FLINT, MICHIGAN.

CARRIAGE-POLE.

SJPEGIFICATION forming part of Letters IPatent No. 422,394, dated March 4;, 1890.

I Application filed November25, 1889. Serial No. 331,562- (ll'o model.)

To all whom it may concern:

Be it known that I, WI LIAM A. GALBRAITH, a citizen of the United States, residing at Flint, in the county of Genesee' and State of Michigan, have invented certain new and useful Improvements in- Carriage-Poles; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon,which form a part of this specification.

This invention relates to certain new and.

useful improvements in adjustable carriagepoles; and it consists of a sliding head provided with an eccentric-lever for locking said head, the spring circle-irons secured to therear end of the pole, and brace-rods pivotal-1y coupled to the circle-irons and attached to the sliding, head.

The object of the invention is to provide an adjustable pole that will be simple in construction, light, cheap, and durable, and ready for adjustment. This object is attained by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a plan View of the under side of a pole embodying my invention. Fig. 2 is a side elevation of same. Fig. 3 is a view of the angle bar or plate removed from the under side of the pole and on which the head slides. Fig. 4 is an enlarged detail of the sliding head, eccentric-lever, and couplingbolt drawn apart.

Referring to the letters of reference in the drawings, A indicates the pole; G G, the spring circle-irons; D D, the brace-rods; O, the angle bar or plate, and B the sliding head. The plate or bar 0 is bolted to the under side of the pole, the bent-end portions of said bar causing its central portion to stand away from the under face of the pole. The head B is set between the pole and the bar 0 and is adapted to slide on said bar. The lever H is pivoted in the head B by means of the bolt or rivet e,

which passes through the holes 2' in the depending wings a c of the head B and through the eye fin the ca1n-head Z of said lever. (See Fig. 4, also Figs. 1 and The bar 0 2 lies between the under face of the head B, and

the cam-head Z of the lever I-I between the adjacent faces of the wings c c. 'When the lever II is in a vertical position, the cam-head Z is free from contact with the bar 0, permitting the head B to slide freely thereon, and when the lever H is thrown up against the under face of the pole the high point t of the eccentric (See Fig. 4E) bears against the under face of the bar 0, firmly locking the head B to said bar, as will be readily understood.

The circle-irons G G are made of spring metal, and their inner ends 2 are permanently secured to the rear end of the pole and on opposite faces, as shown in Fig. 1. The circle-irons are curved outward and rearward, and are provided at their rear ends with a swivel-head I), having an eye therein, by means of which they are coupled to the clips on the axle of the vehicle. The inner ends 2 of the circle-irons stand nearly at right angles to the main circle.

The forward ends of the brace-rods D D are attached to the head B, and their rear ends'are pivotallycoupled at a to the outer curved face of the circle-irons.

To adjust the pole for a wide vehicle, the lever H is thrown to a vertical position, as shown by dotted lines in Fig. 2, releasing the cam-head Z from contactwith the barO. The head B is then slid forward, drawing upon the brace-rods D D and causing the free ends of the circle-irons to spring out or apart, as clearly shown by dotted lines in Fig. 1. The lever II is then thrown up against the under face of the pole, firmly locking the parts in place, as before described. To adjust the pole for a narrow vehicle, the head B is moved in the opposite direction.

By securing the inner ends of the circleirons to the rear end of the pole and causing their free ends to spring when making an adj ustment forms a strong and cheap pole and overcomes much of the rattle of the parts, and by employing the eccentric-lever the parts may be readily releasedand quickly and firmly secured.

Having thus fully setforth my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In combination with the pole, the twopart spring=metal circle bar, the inner ends of the metal circle-bar being attached to the coupled to the circle-irons, the sliding head rear end of the pole, their outer ends carrymonnted on the pole, the brace-rods coupled ing a swivel-head, the set of brace-rods lmvthereto, the plate supporting the sliding head, I 5 ing their rear ends pivotallyztttached to the and the eccentric-lever, as and for the pur- 5 circle-bar, their forward ends a-djustably poses specified.

mounted on the pole, substantially as speci- Intestimonywhereof I affix mysignatnre in fled. presence of two Witnesses.

14. I11 comblnation 1th the pole, the too VILLIAM A GALBRAITI part circle-irons, the inner ends being at- 10 taehed to the outer vertical faces of the pole, Witnesses:

the swivel-head attached to the outer ends of JAMES II. MOFARLAN, the circleirons, the brace-rods pivotally SUMNER HOWARD. 

